Pith Number

pith:FXGLJ5V5

pith:2018:FXGLJ5V5SHOUL34C4QSJN3H3RY

not attested not anchored not stored refs pending

Unsupervised Learning and Segmentation of Complex Activities from Video

Angela Yao, Fadime Sener

arxiv:1803.09490 v1 · 2018-03-26 · cs.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FXGLJ5V5SHOUL34C4QSJN3H3RY}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:20:11.380750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2dccb4f6bd91dd45ef82e42496ecfb8e12fe871e12e85aee1d94e6b6c7ebf15f

Aliases

arxiv: 1803.09490 · arxiv_version: 1803.09490v1 · doi: 10.48550/arxiv.1803.09490 · pith_short_12: FXGLJ5V5SHOU · pith_short_16: FXGLJ5V5SHOUL34C · pith_short_8: FXGLJ5V5

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/FXGLJ5V5SHOUL34C4QSJN3H3RY \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 2dccb4f6bd91dd45ef82e42496ecfb8e12fe871e12e85aee1d94e6b6c7ebf15f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83158b1daf74d31268ab3106d614386ffc7bc150782fd8cba650264a8f77f9a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-03-26T09:47:26Z",
    "title_canon_sha256": "b802d5d431726803572895c660e9a61dcbd83ce4b55c6f35f66f5c5eca9d9f3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.09490",
    "kind": "arxiv",
    "version": 1
  }
}